Boiler-flue cleaner.



PATENTED MAY 7, 1907.

J. BENNETT. BOILER FLUEAGLEANER.

APrLIoATIon FILED F2342. 19o?.

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ooooooo JAMESBENNETT, OF CLEVELAND, OHIO.

BOlLER-FLUE CLEANER.

Specification of Letters Patent.

Patented May '7, 1907.

Application filed February 12, 1907. Seri-al No; 356,978.

To all 'wh/om it may concern:

Be it known that I, JAMEs BENNETT, a citizen of the United States, land a resident of Cleveland, county of Cuyahoga, State of Ohio, have invented certain new and useful Improvements in Boiler-Flue Cleaners, of which l. hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

The objects of the invention are to provide means for cleansing the smoke flues of a steam boiler without having recourse to niechanical means or manual labor which. would require the temporary disuse, of the boiler and hence the reduction of steamand check- 'ing of all machinery operated thereby.

The device is particularly applicable to marine boilers where the high degree of steam pressure requires a forced draft through the boiler tubes to maintain it, and hence coatings of soot are quickly formed in the flues of boiler and force or induced draft apparatus, which serve as an insulation and non-conductor of heat, and hence the heat from the furnace does not have a complete effect upon the water in the boiler, unless the' soot is removed at frequent intervals and a lowering of pressure and a consequent checking'of the speed of the engine results, which in a marine vessel. is not desirable when the vessel is at sea.

The invention comprises a steam'blower having horizontal pivotal bearings in the breeching and having a vertical transverse swinging movement adapted to apply the steam discharged from jet orifices therein in succession into each boiler tube and tube ofthe forced or induced draft device.

The -invention comprises further a steam pipe shaped into a rectangular form or frame and having swiveled connections with a steam supply pipe,l leading from the boiler,

Aand having its rear edge provided with nipcated withiny the breeching and pivoted thereto; Fig. 2 is a front elevation thereof; Fig. 3 is a longitudinal broken section, showinga marine boiler provided ywith tubular forced draft; Fig. 4 is a front elevation showing the blower separated into two horizontal sections, supplied with steam by means of a common central steam pipe and a three way valve, Figs. 5 @a 6 are details of blower.

In these views, 1 is Aa marine boiler provided with fire tubes 2 and return iiues 3, 4 is the breeching extending over the upper front end of the boiler, and upwardly to the smoke stack, 5 is the steam blower which is provided with the rearwardly extending tubular arms 6, and transverse rear tubular member 7, which is perforated and provided with dis-4 charge steam nipples S, arranged opposite the rows of return lues 3 of the boiler. The blower 5 is pivoted in the sides of the breeching at 9 and provided with a handle 10, so that it can readily be rotated therein. The vertical swinging movement of the blower brings the row of nipples opposite each row of iiue openings in turn, and the steam is injected therein, so as to drive the soot backward to fall into the rear of the iire box, and thus cleanse the flues, and since the lever or handle 10 is placed exterior to the breeching this cleansing operation can be performed at any time, while the boiler is in use, and thus avoid checking the speed of the engine which would be a matter of great loss of time and consequent expense to the owners of a marine vessel.

In, Figs. 3 and 4 are shown a tubular device 11 which in connection with a blower pipe (not shown) provides an increased forced or induced draft. The tubes 12 therein are vertically-arranged and are within ,the sweep of the steam blower as it is rotated in its bearings in the breeching and the soot collection therein is readily blown out. ln these views the boiler is shown to have duplicate :['ire tubes and set-s of return 'lues. Hence the steam blower is separated into two parts and a central steam pipe 12 supplies steam to both. An'intermediate 3' ported valve 13 operated by means of a lon stem is employed to turn the steam alternately into these blowers.

1t will readily be seen thatl by means of this device much time and labor can be dispensed with and the elliciency of the boiler maintained at its maximum limit.

IOO

IIO

Having described the invention what I claim as new and desire to secure by Letters Patent is Y 1. In a marine boiler, provided with horizontal smoke iiues and a vertically extended breeching and an increased draft device therein having vertical smoke flues, in combination therewith a tubular steam blower device pivoted at each end in the sides of said breeching, and extending transversely in front of said horizontal ues and underneath said vertical flues, said steam blower device having a row of discharge openings in its rear edge and rotatable through a vertical arc and adapted to register in turn with the said horizontal and vertical flue openings, means for rotating said tubular blower, and means for supplying steam thereto, substantially as described.

2. In combination with a marine boiler provided with return flues and a breeching therefor, a tubular blower frame, transversely pivoted in said breeching in front of said flues and having a free swinging vertical movement thereover through an arc of 90, an operating lever therefor accessible from outside the breeching, and a steam pipe connected therewith, substantially as described.

3. In combination with a boiler having re turn smoke flues therein, and a breeching therefor, a rectangular tubular steam blower frame, pivoted bearings therefor, in the sides of said breeching, a lever attached thereto exterior to said breeching whereb a swinging movement is imparted to said frame over said liuc openings through a vertical arc, said steam blower frame being provided with nipples for steamijiets upon its inner transverse edge said nipples adapted to register in turn with each transverse row of flue openings, as said blower frame is rotated, substantially as described.

4. ln combination with a marine boiler having duplicate sets of horizontal smoke flues, a breeching therefor, & duplicate draft inducers in said breeching having vertical ilues, a steam blower transversely pivoted in said breeching in duplicate portions separately rotatable through avertical arc, whereby steam can be applied in both vertical and horizontal directions, steam nipples in the rear edge of said steam blower, a common steam pipe for said blowers, and a three way valve adapted to admit steam alternately to said blowers, substantially as described.

5. In combination with a marine boiler provided with horizontal boiler flues, a breechingand an induced draft device having vertical flues; a steam blower frame therefor, comprising, a rectilinear steam tube pivoted at each end in the sides of the breeching, a parallel jet pipe having jet orifices in its inner edge, and transversely placed tubular connecting members, and means located exterior to said breeching for imparting avertical swinging movement to said frame, substantially' as described.

In testimony whereof I hereunto set my hand this 9th dayv of February 1907.

J AMES BENNETT.

l/Vitnesses:

WM. M. MONROE, GEO. O. WILLET. 

